IBM System/7 Functional Characteristics - All about the IBM 1130 ...

ead, 5022 Disk Storage Module (continued)data mode (continued)terminate command 15-13data operation 15-7DSW command 15-25initialize command 15-14ISW command 15-21ISWEX command 15-23sector ID command 15-17verify command 15-17read, 5028 Operator Stationcharacter with tape feed command 9-11character without tape feed command 9-11ISW command 9-12read command acknowledge response, 2790 system 14-19read commands, 2790 system 14-19read cycle steal 4-55, 4-59, 15-15read data acknowledge response, 2790 system 14-19read data command, 2790 system 14-19read data request response, 2790 system 14-19read digital input register command 14-6read DSW command 14-3read end acknowledge response, 2790 system 14-19read end command, 2790 system 14-19.read end request response, 2790 system 14-19read IAR backup (RIB) instruction A-17, 4-47read null acknowledge response, 2790 system 14-20read null command, 2790 system 14-19read protect key (RPK) instruction A-18, 4-54read request response, 2790 system 14-19read verify cycle steal (disk) 15-13Reader, 2502 (see 2502 Card Reader)receive mode, ACCA 7-4receive status, ACCA 7-4recovery procedures, disk errorDSW errors 15-29ISW errors 15-29ISWEX errors 15-30overrun 15-6, 15-7REG (register) lights 5-3register-to-register instructions 4-41execution time 4-3inspect IAR backup A-11, 4-44interchange register A-11, 4-43load from register A-13, 4-42load processor status A-15, 4-44read IAR backup A-17, 4-47store indicators A-23, 4-48store to register A-23, 4-41write IAR backup A-25, 4-46registersaccumulator (ACC) 2-11arithmetic and logic unit (ALU) 2-2backup instruction address (IARB) 2-10duplication 2-2index (XR) 2-10instruction address (IAR) 2-10interruption mask 2-11miscellaneous machine 2-12operation (OP) 2-2, 2-12R field 4-5REG lights 5-3storage address (SAR) 2-2storage data (SDR) 2-2, 2-12Y 2-2remote IPL 1-2remote switch, 5028 Operator Station 9-4repetitive read, analog operations 11-6, 13-13request, interruptionbuffer servicing 3-4queuing, interruption 3-4servicingbuffer 3-4request, interruption (continued)servicing (continued)class interruptions 3-9displacement table branching 3-8interruption 3-2machine check interruptions 3-10program check interruptions 3-10summary status bit 3-9stacking, interruption 3-4request switch, 5028 Operator Stationindicator light 9-5interruption request to processor 9-5IPL 9-5reserved cylinders 15-4reserved storage locationspointers to level tables 3-6restart instruction 3-6to service class interruptions 3-6reset ACCA command 7-10RESET key 2-5, 5-9reset processor status 4-44resetting, processor instructionI/O module 4-58prepare I/O data in module 4-57resolution for each analog input range E-1response digit 13-20, 14-17responses to 2790 control commands B-6responses to 2790 read commands B-5responses to 2790 write commands B-6restart instruction, reserved storage locations 3-6restore acknowledge response, 2790 system 13-35, 14-22restore command, 2790 system 13-34, 14-21restrictionsin 1130 system 16-2input power 1-7interruptions to System/7 (1130) 16-4interval timers 6-2level displacement tables 3-6monolithic storage, maintain power 1-2motor control, operator station 9-7operating (disk storage module) 15-6operating temperature 1-7programming, operator station 9-2programming (disk storage module) 15-6programming and storage (2790) 13-26, 14-13reserved storage locations 3-6timing 13-37, 14-24with automatic answer feature 7-3result indicatorsresult-even 2-13result-negative 2-13result-positive 2-13result-zero 2-13RIB (read IAR backup) instruction A-17, 4-47rotary switch area 5-6RPK (read protect key) instruction A-18, 4-54S (subtract) instruction A-24, 4-15SAR (storage address register) 2-2satellite configuration 1-2scanning speed, analoginput 1-4, 10-2, 11-2, 12-2, 13-4, 13-9SDR (storage data register) 2-2SDR (stroage data register) 2-12sector identifier 15-6correlation with control information word 15-26flag bits 15-26flagging 15-26format 15-6format track command 15-27sector numbering 15-6X-12 GA34-0003